I have a potterton heatmax 28 HE boiler (upstairs in airing cupboard) & downstairs, really decent hot water pressure (just under 5 bar) but to the taps & bath upstairs really low (cant check the pressure as no connection for pressure gauge).
I Want to put in a power shower but believe the HW pressure is too low to make it usable. 1 plumber suggested a shower pump but i don't think this is even legal (as draws water from mains). Not sure what to do/what the issue could be.
5 bar is more than just "decent" I would expect any pressure loss by a height increase of something like 3 metres to not be noticeable. A pump is not the answer. What is the plumber's explanation for that amount of loss ?
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